TW201208281A - Method and apparatus for supporting adaptive channel state information feedback rate in multi-user communication systems - Google Patents

Method and apparatus for supporting adaptive channel state information feedback rate in multi-user communication systems Download PDF

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Publication number
TW201208281A
TW201208281A TW100105282A TW100105282A TW201208281A TW 201208281 A TW201208281 A TW 201208281A TW 100105282 A TW100105282 A TW 100105282A TW 100105282 A TW100105282 A TW 100105282A TW 201208281 A TW201208281 A TW 201208281A
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Taiwan
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csi
subset
devices
training sequence
request
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TW100105282A
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English (en)
Chinese (zh)
Inventor
Gregory A Breit
Santosh Paul Abraham
Sameer Vermani
Hemanth Sampath
Vincent Knowles Jones
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Qualcomm Inc
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Application filed by Qualcomm Inc filed Critical Qualcomm Inc
Publication of TW201208281A publication Critical patent/TW201208281A/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03343—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0658—Feedback reduction
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • H04L1/0029—Reduction of the amount of signalling, e.g. retention of useful signalling or differential signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • H04L1/003—Adaptive formatting arrangements particular to signalling, e.g. variable amount of bits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0222—Estimation of channel variability, e.g. coherence bandwidth, coherence time, fading frequency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/0335—Arrangements for removing intersymbol interference characterised by the type of transmission
    • H04L2025/03426—Arrangements for removing intersymbol interference characterised by the type of transmission transmission using multiple-input and multiple-output channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L2025/03777—Arrangements for removing intersymbol interference characterised by the signalling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0204—Channel estimation of multiple channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/0202—Channel estimation
    • H04L25/0224—Channel estimation using sounding signals
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
TW100105282A 2010-02-17 2011-02-17 Method and apparatus for supporting adaptive channel state information feedback rate in multi-user communication systems TW201208281A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US30539410P 2010-02-17 2010-02-17
US12/958,959 US8923219B2 (en) 2010-02-17 2010-12-02 Method and apparatus for supporting adaptive channel state information feedback rate in multi-user communication systems

Publications (1)

Publication Number Publication Date
TW201208281A true TW201208281A (en) 2012-02-16

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
TW100105282A TW201208281A (en) 2010-02-17 2011-02-17 Method and apparatus for supporting adaptive channel state information feedback rate in multi-user communication systems

Country Status (7)

Country Link
US (1) US8923219B2 (enExample)
EP (1) EP2537307A1 (enExample)
JP (2) JP6017314B2 (enExample)
KR (1) KR101422786B1 (enExample)
CN (1) CN102783105B (enExample)
TW (1) TW201208281A (enExample)
WO (1) WO2011103367A1 (enExample)

Families Citing this family (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110199946A1 (en) * 2010-02-17 2011-08-18 Qualcomm Incorporated Method and apparatus for supporting adaptive channel state information feedback rate in multi-user communication systems
US8630195B2 (en) 2010-07-26 2014-01-14 Intel Corporation Method and devices for multiple station sounding in a wireless local area network
CN102447502B (zh) * 2010-09-30 2015-03-11 日电（中国）有限公司 用于获取进行波束成形所需的信道状态信息的方法和设备
US8750860B2 (en) * 2011-01-21 2014-06-10 Telefonaktiebolaget L M Ericsson (Publ) Stale feedback using a secondary base station
CN103001681B (zh) * 2011-09-14 2015-02-04 华为技术有限公司 一种探测方法、系统及设备
CN103001682B (zh) * 2011-09-14 2015-03-11 华为技术有限公司 一种数据反馈方法以及相关装置
CN103001680B (zh) * 2011-09-14 2015-04-08 华为技术有限公司 一种权值的传输方法及装置
CN103095426B (zh) * 2011-10-31 2015-06-03 华为技术有限公司 一种信道测量反馈请求方法、站点装置及服务集系统
US9525474B2 (en) * 2011-11-24 2016-12-20 Lg Electronics Inc. Method for performing channel sounding in wireless LAN system and apparatus for supporting same
US9271170B1 (en) * 2012-05-01 2016-02-23 KCF Technologies Incorporated Channel adaptation in sensor networks
US20150236829A1 (en) * 2012-08-31 2015-08-20 Nokia Solutions And Networks Oy Method, apparatus, system and computer program product for coordination of wireless transmission in a frequency band
US20140071955A1 (en) * 2012-09-13 2014-03-13 Qualcomm Atheros, Inc. Dynamic Sounding Control In Wifi
US9179455B2 (en) * 2012-10-05 2015-11-03 Intel Corporation Methods and arrangements for frequency selective transmission
TWI478525B (zh) * 2013-01-23 2015-03-21 Academia Sinica 多使用者多天線系統之傳送速率動態調節機制
US8929474B2 (en) * 2013-03-14 2015-01-06 Qualcomm Incorporated Systems and methods for optimizing sounding interval
CN104254981B (zh) * 2013-04-25 2017-09-22 英特尔公司 毫米波通信设备以及用于发射功率和功率密度的智能控制的方法
JP6134573B2 (ja) * 2013-04-25 2017-05-24 京セラ株式会社 通信装置及び通信制御方法
CN104168050B (zh) 2013-05-16 2019-07-19 华为技术有限公司 信道信息反馈的方法和设备
CN109245807B (zh) 2013-06-25 2019-11-19 华为技术有限公司 上行多用户数据传输方法及上行多用户输入输出系统
US9008152B2 (en) * 2013-08-27 2015-04-14 Nokia Technologies Oy Method, apparatus, and computer program product for wireless signaling
US20150110046A1 (en) * 2013-10-17 2015-04-23 Qualcomm Incorporated Methods and apparatus for channel state information feedback
US9106467B2 (en) * 2013-11-08 2015-08-11 Intel Corporation Backchannel communications for initialization of high-speed networks
US9473341B2 (en) 2013-11-27 2016-10-18 Marvell World Trade Ltd. Sounding and tone block allocation for orthogonal frequency multiple access (OFDMA) in wireless local area networks
US10027512B2 (en) * 2014-01-06 2018-07-17 Lg Electronics Inc. Method and apparatus for sounding in wireless communication system
US9357558B2 (en) * 2014-06-27 2016-05-31 Qualcomm Incorporated Partition scheduling based on beamtracking
US9838900B2 (en) * 2014-09-15 2017-12-05 Qualcomm, Incorporated Enhanced RTS/CTS enablement and detection
US9788317B2 (en) * 2015-03-30 2017-10-10 Intel IP Corporation Access point (AP), user station (STA) and method for channel sounding using sounding trigger frames
US10826588B2 (en) 2015-04-16 2020-11-03 Lg Electronics Inc. Channel sounding method in wireless communication system, and apparatus therefor
WO2017000308A1 (zh) 2015-07-02 2017-01-05 华为技术有限公司 传输信道状态信息的方法、接入点和站点
EP3320626A1 (en) * 2015-07-10 2018-05-16 Interdigital Patent Holdings, Inc. Unified feedback for ofdma wlan
US9876543B2 (en) * 2016-01-05 2018-01-23 Keysight Technologies Singapore (Holdings) Pte. Ltd. Systems and methods for channel state information exchange
CN107027145B (zh) * 2016-02-01 2021-01-01 华为技术有限公司 信道测量方法及装置
US10425922B2 (en) 2016-02-20 2019-09-24 Qualcomm Incorporated Communication of uplink control information
US10397904B2 (en) 2016-02-20 2019-08-27 Qualcomm Incorporated Communication of uplink control information
US10517006B2 (en) * 2016-04-13 2019-12-24 Qualcomm Incorporated Techniques for reporting channel feedback in wireless communications
KR102638667B1 (ko) * 2016-06-17 2024-02-21 삼성전자주식회사 안테나를 제어하기 위한 방법 및 그 전자 장치
US10911120B2 (en) * 2017-07-24 2021-02-02 Qualcomm Incorporated Downlink (DL) coordinated beamforming protocols for WiFi
JP7105740B2 (ja) * 2019-06-27 2022-07-25 華為技術有限公司 チャネル状態情報を送信する方法、アクセスポイント、およびステーション
CN110831072B (zh) * 2019-10-28 2024-02-13 普联技术有限公司 一种基于wlan的mcs选择方法及系统
JP7421343B2 (ja) * 2020-01-09 2024-01-24 キヤノン株式会社 通信装置、通信装置の制御方法、およびプログラム
WO2021256831A1 (ko) * 2020-06-15 2021-12-23 엘지전자 주식회사 무선랜 시스템에서 센싱을 수행하는 방법 및 장치
CN114915323A (zh) 2021-02-07 2022-08-16 艾锐势企业有限责任公司 网络接入设备及其方法、介质和计算机程序产品

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7603703B2 (en) 2001-04-12 2009-10-13 International Business Machines Corporation Method and system for controlled distribution of application code and content data within a computer network
KR20030092894A (ko) 2002-05-31 2003-12-06 삼성전자주식회사 고속 순방향 패킷 접속 방식을 사용하는 통신 시스템에서순방향 채널 품질을 보고하기 위한 채널 품질 보고 주기결정 장치 및 방법
US7640373B2 (en) 2003-04-25 2009-12-29 Motorola, Inc. Method and apparatus for channel quality feedback within a communication system
US7349436B2 (en) * 2003-09-30 2008-03-25 Intel Corporation Systems and methods for high-throughput wideband wireless local area network communications
KR100606062B1 (ko) 2004-02-26 2006-07-26 삼성전자주식회사 이동통신 시스템에서 시변채널의 특성에 따라 채널품질정보의 전송을 제어하는 방법
US8830846B2 (en) 2005-04-04 2014-09-09 Interdigital Technology Corporation Method and system for improving responsiveness in exchanging frames in a wireless local area network
US7872981B2 (en) 2005-05-12 2011-01-18 Qualcomm Incorporated Rate selection for eigensteering in a MIMO communication system
GB2432751B (en) * 2005-11-28 2007-11-14 Motorola Inc Retransmission in a cellular communication system
WO2007074453A2 (en) 2005-12-29 2007-07-05 Celeno Communications Ltd. A method of secure wlan communication
US7634015B2 (en) * 2006-02-10 2009-12-15 Intel Corporation Mobile station and method for channel sounding using a single radio frequency transmitter chain in a multiple-input multiple-output (MIMO) system
TWI446744B (zh) 2006-03-20 2014-07-21 Koninkl Philips Electronics Nv 時變信號品質報告
JP4775288B2 (ja) 2006-04-27 2011-09-21 ソニー株式会社 無線通信システム、無線通信装置及び無線通信方法
US8787841B2 (en) * 2006-06-27 2014-07-22 Qualcomm Incorporated Method and system for providing beamforming feedback in wireless communication systems
CN102412936A (zh) 2006-10-23 2012-04-11 交互数字技术公司 无线发射/接收单元、方法和无线网络设备
CN101536570B (zh) * 2006-11-03 2016-08-03 谷歌技术控股有限责任公司 在无线通信系统中调度远程单元
GB2447635A (en) 2007-03-19 2008-09-24 Fujitsu Ltd Scheduling qos communications between nodes within a predetermined time unit in wimax systems
US9413489B2 (en) * 2007-04-27 2016-08-09 Blackberry Limited Method and system for data-driven, variable-rate, channel quality indicator for LTE non-real-time bursty traffic
WO2009027931A2 (en) * 2007-08-31 2009-03-05 Koninklijke Philips Electronics N.V. Enhanced multi-user transmission
KR101350510B1 (ko) 2007-09-13 2014-01-09 엘지전자 주식회사 슬립 모드 단말을 위한 채널품질지시자 송수신 방법
US8509160B2 (en) * 2008-02-11 2013-08-13 Apple Inc. Method for efficient CQI feedback
US8238274B2 (en) * 2008-03-10 2012-08-07 Intel Corporation Device, system, and method of wireless beamforming calibration
KR101621096B1 (ko) 2008-10-15 2016-05-16 엘지전자 주식회사 멀티캐스트 프레임 전송방법 및 중복 프레임 검출 방법
JP5576875B2 (ja) * 2008-12-15 2014-08-20 テレフオンアクチーボラゲット エル エム エリクソン（パブル） 上り制御チャネルの制御のための電気通信ネットワークにおける方法と装置
EP2894795B1 (en) * 2009-08-14 2017-06-28 HMD Global Oy Improvements for coordinated multipoint transmission
KR101746733B1 (ko) 2009-12-02 2017-06-13 마벨 월드 트레이드 리미티드 복수의 스테이션을 사운딩하는 방법 및 장치
US8675575B2 (en) * 2009-12-23 2014-03-18 Intel Corporation Scheduling mechanisms for media access control protection and channel sounding
US20110199946A1 (en) 2010-02-17 2011-08-18 Qualcomm Incorporated Method and apparatus for supporting adaptive channel state information feedback rate in multi-user communication systems

Also Published As

Publication number Publication date
CN102783105A (zh) 2012-11-14
WO2011103367A1 (en) 2011-08-25
US20110299480A1 (en) 2011-12-08
JP2015111870A (ja) 2015-06-18
JP2013520143A (ja) 2013-05-30
KR101422786B1 (ko) 2014-07-23
EP2537307A1 (en) 2012-12-26
CN102783105B (zh) 2016-06-08
JP6017314B2 (ja) 2016-10-26
US8923219B2 (en) 2014-12-30
KR20120130215A (ko) 2012-11-29

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